darkcomet | 4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ff

Analysis

max time kernel
120s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-11-2024 05:20

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General

Target

4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe
Size

520KB
MD5

de36061ff28a39f72982ba16a836aab0
SHA1

dbae1d7cf090303969b2f8e3a5938b56d11ec316
SHA256

4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ff
SHA512

5a56dce02829d675173cf6a7e9afcbcbd6b18708d8c25123ed730275610ff122d364549ba46ed420253b506b13d309a951a4e9cc48a39a3447d3be9597e02201
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbi:f9fC3hh29Ya77A90aFtDfT5IMbi

Score

10^/10

darkcomet privateeye discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

PrivateEye

ratblackshades.no-ip.biz:1604

Mutex

DC_MUTEX-ACC1R98

Attributes

gencode
8GG5LVVGljSF
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Executes dropped EXE 3 IoCs

pid	Process
2876	winupd.exe
2660	winupd.exe
2900	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
2880	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe
2880	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe
2876	winupd.exe
2876	winupd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\winupd.exe -notray"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3024 set thread context of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 2876 set thread context of 2660	2876	winupd.exe	33
PID 2876 set thread context of 2900	2876	winupd.exe	34

UPX packed file 23 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2900-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-80-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-79-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2900-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2764	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2972	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2900	winupd.exe
Token: SeSecurityPrivilege	2900	winupd.exe
Token: SeTakeOwnershipPrivilege	2900	winupd.exe
Token: SeLoadDriverPrivilege	2900	winupd.exe
Token: SeSystemProfilePrivilege	2900	winupd.exe
Token: SeSystemtimePrivilege	2900	winupd.exe
Token: SeProfSingleProcessPrivilege	2900	winupd.exe
Token: SeIncBasePriorityPrivilege	2900	winupd.exe
Token: SeCreatePagefilePrivilege	2900	winupd.exe
Token: SeBackupPrivilege	2900	winupd.exe
Token: SeRestorePrivilege	2900	winupd.exe
Token: SeShutdownPrivilege	2900	winupd.exe
Token: SeDebugPrivilege	2900	winupd.exe
Token: SeSystemEnvironmentPrivilege	2900	winupd.exe
Token: SeChangeNotifyPrivilege	2900	winupd.exe
Token: SeRemoteShutdownPrivilege	2900	winupd.exe
Token: SeUndockPrivilege	2900	winupd.exe
Token: SeManageVolumePrivilege	2900	winupd.exe
Token: SeImpersonatePrivilege	2900	winupd.exe
Token: SeCreateGlobalPrivilege	2900	winupd.exe
Token: 33	2900	winupd.exe
Token: 34	2900	winupd.exe
Token: 35	2900	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe
2880	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe
2876	winupd.exe
2660	winupd.exe
2900	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 3024 wrote to memory of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 3024 wrote to memory of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 3024 wrote to memory of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 3024 wrote to memory of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 3024 wrote to memory of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 3024 wrote to memory of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 3024 wrote to memory of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 3024 wrote to memory of 2880	3024	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	31
PID 2880 wrote to memory of 2876	2880	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	32
PID 2880 wrote to memory of 2876	2880	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	32
PID 2880 wrote to memory of 2876	2880	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	32
PID 2880 wrote to memory of 2876	2880	4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe	32
PID 2876 wrote to memory of 2660	2876	winupd.exe	33
PID 2876 wrote to memory of 2660	2876	winupd.exe	33
PID 2876 wrote to memory of 2660	2876	winupd.exe	33
PID 2876 wrote to memory of 2660	2876	winupd.exe	33
PID 2876 wrote to memory of 2660	2876	winupd.exe	33
PID 2876 wrote to memory of 2660	2876	winupd.exe	33
PID 2876 wrote to memory of 2660	2876	winupd.exe	33
PID 2876 wrote to memory of 2660	2876	winupd.exe	33
PID 2876 wrote to memory of 2660	2876	winupd.exe	33
PID 2876 wrote to memory of 2900	2876	winupd.exe	34
PID 2876 wrote to memory of 2900	2876	winupd.exe	34
PID 2876 wrote to memory of 2900	2876	winupd.exe	34
PID 2876 wrote to memory of 2900	2876	winupd.exe	34
PID 2876 wrote to memory of 2900	2876	winupd.exe	34
PID 2876 wrote to memory of 2900	2876	winupd.exe	34
PID 2876 wrote to memory of 2900	2876	winupd.exe	34
PID 2876 wrote to memory of 2900	2876	winupd.exe	34
PID 2660 wrote to memory of 2764	2660	winupd.exe	35
PID 2660 wrote to memory of 2764	2660	winupd.exe	35
PID 2660 wrote to memory of 2764	2660	winupd.exe	35
PID 2660 wrote to memory of 2764	2660	winupd.exe	35
PID 2660 wrote to memory of 2764	2660	winupd.exe	35
PID 2660 wrote to memory of 2764	2660	winupd.exe	35
PID 2764 wrote to memory of 2588	2764	ipconfig.exe	37
PID 2764 wrote to memory of 2588	2764	ipconfig.exe	37
PID 2764 wrote to memory of 2588	2764	ipconfig.exe	37
PID 2764 wrote to memory of 2588	2764	ipconfig.exe	37
PID 2588 wrote to memory of 2972	2588	cmd.exe	39
PID 2588 wrote to memory of 2972	2588	cmd.exe	39
PID 2588 wrote to memory of 2972	2588	cmd.exe	39
PID 2588 wrote to memory of 2972	2588	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe
"C:\Users\Admin\AppData\Local\Temp\4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Users\Admin\AppData\Local\Temp\4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe
  "C:\Users\Admin\AppData\Local\Temp\4be3a6686a4ea050f870f1bafb1cb6a63549e525f4215af3ff26a3de545908ffN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2880
- - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2876
  - - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2660
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Gathers network information
        Suspicious use of WriteProcessMemory
        
        PID:2764
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\FNEWOKFA.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2588
        
        C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinUpdate /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray" /f
        7⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:2972
  - - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\FNEWOKFA.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe

Filesize
520KB

MD5
8c29c8dad4b1721be1d921708bd3ac56

SHA1
690213c2ecfb219541236ca0062e2422b2a29f9d

SHA256
ad76ba7362b303e5a676488c673915c6eae1498f7367975c0b6cec9d7363d3bc

SHA512
820dad630e762bdad219c106bbd13bc1d822f96ce302baa203e46b7be5487be4cd61d6f3932ce54cca6a3c7d469a3968c678c2f79bcaee7b935dc5fff1437db4

Download Submit
memory/2660-83-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2764-65-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2876-42-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2876-36-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2876-67-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2880-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2880-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2880-70-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2880-22-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2880-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2880-14-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2880-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-80-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-79-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2900-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3024-16-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3024-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3024-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3024-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3024-21-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads